Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSGMC2016ACADIA SLE, FWDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOLLISION/AVOIDANCEOBJECT DETECTION SYSTEM AND PEDESTRIAN PROTECTION SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESREAR CROSS TRAFFIC ALERT SYSTEM MALFUNCTIONCIRCUIT/SYSTEM VERIFICATION
2016 GMC Acadia SLE, FWD
Circuit/System Verification
2016 GMC Acadia SLE, FWDSECTION Circuit/System Verification
- Ignition ON.
- Verify the scan tool can communicate with the right side object sensor.
- If the scan tool can not communicate with the right side object sensorÂ
Refer to Circuit/System Testing - Right Side Object Sensor Malfunction.
- If the scan tool can communicate with the right side object sensorÂ
- If the scan tool can not communicate with the right side object sensorÂ
- Verify the scan tool can communicate with the left side object sensor.
- If the scan tool can not communicate with the left side object sensorÂ
Refer to Circuit/System Testing - Left Side Object Sensor Malfunction.
- If the scan tool can communicate with the left side object sensorÂ
- If the scan tool can not communicate with the left side object sensorÂ
- Verify that the rear cross traffic indicators alerts turn ON and then turn OFF when commanding the Object Detection Alert Indicators ON and OFF with a scan tool.
- If alert indicators do not turn ON and OFFÂ
- Verify the system is enabled.
- If disabled, refer to diagnostic aids for cause of disable.
- If enabled, test or replace the radio.
- If indicators turn ON and OFFÂ
- All OK.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.